Gin-saw gummer.



. PATENTED. Ailh l, 1905.

E. A. FRANTZ.

GIN SAW GUMMER.

APPLICATION FILED APR.29,1Q04. I

2 SHEETS-SHEET L um J5 Elm fiafdz,

Inventor, b9 J PATENTED APR. 4, 19:15.

E. A. FRANTZ.

GIN SAW GUMMER. ,APPLIOATION FILED APR. 29, 1904;

2 SHEETS-SHEET 2.

V apart by collars 2, as usual.

' Patented Apr-i1 1, 1905.

PATENT OFFICE. 8

EZRA ALLEN FRANTZ, OFWVEATHERFORD, TEXAS.

(BIN-SAW GUNHVIEFL SPECIFICATION forming part of Letters Patent No.786,750, dated April 4, 1905. Application filed April 29, 1904. SerialNo. 205,571.

To all whom it may concern:

Be it known that I, EZRA ALLEN FRANTZ, a citizen of the United States,residing at Weatherford, in the county of Parker and State of Texas,have invented a new and useful Gin-Saw Gummer, of which the followingis'a specification.

This invention relates to gin-saw gummers.

The object of the invention is to improve the construction of suchmachines in the particulars hereinafter specified.

Referring to the accompanying drawings, Figure 1 is a side elevation'ofa machine constructed in accordance with my invention.

2 is a view at right angles to Fig. 1.'

Fig. 3 is a horizontal section on line 3 3 of Fig. 2. Fig. 4 is a detailview of the auxiliary plunger. Fig. 5 is a detail View of a chisel orgumming-tool. Fig. 6 is a detail View of .the plate 37 on the lever 36.Fig. 7 is a detail View of a circular cutting-tool to be used in placeof thechisel- 23.

Like reference characters indicate like parts in the views.

The gin-saws 1 when mounted in temporary bearings to enable them to beoperated" or gummed by myimproved-machine are spaced my machinecomprises'a laterally-extending bar 3, Wl1lCl1 1s beveled at its upperand lower edges, as shown in Fig. 1.

. the beveled bar 3 are. two brackets 4:, which are forked at theirlower ends in the manner shown to straddle the collars between the saws,so as to support the machine in proper relation ti the saws beinggummed. The brackets are movable longitudinally upon the bar 3 in ordertobe adjusted to the collars 2, said brackets being held firmly inadjusted position by the thumb-screws 5. Attached to or formed on thebars 3 intermediate the brackets 4. is an upright 6, constituting partof the machine-frame. The uppersurface of the upright 6 is beveled, asshown, and upon this beveled surface is adjustably mounted a bracket-7.Any suitable adjustable connection -may be utilized between the bracket7 and the upright 6. For convenience l have illustrated the connectionas comprising bolts 8, passing through lugs on the The frame 'of-Mounted upon" upright 6 and through slots 9 in the bracket 7, the slotsbeingvengaged by the bolts. Mounted for longitudinal movement in an arm10 of the bracket 7 is a plunger 11, which the plunger 11 is a spiralspring 17, which bears at one end against the shoulder 13 of the'plungerand at the other against the bushing 14. By turning the bushing one wayor the other the tension of the spring 17 may be regulated. Passingthrough the arm' 10 of the bracket 7 in adirection approximatelyparallel to the plunger 11 is a bar 18, which has adjustably mountedupon its lower end by means of an adjusting-screw 19a bracket 20. At itsopposite end the bar 18 is adjustable longitudinallyin the arm 10 bymeans of the adjusting-screw 21. Thebracket 20 on the bar 18 supportsasmall plunger 22, in the lower end of which is removably secured in anysuitable manner a chisel23 or other suitable cutting device for gummingthe ginsaws. A'spiral spring 24 surrounds the plunger 22, said spiral.spring bearing at one end against the upper surface of the bracket 20and at its other end against a pin 25, extending through the plunger. Itwill be observed. that the plunger22 is directly in line with theplunger 11 and is adapted to be operated thereby.

Journaled in the bracket 7 is a wheel 26, which may be operated in anypreferred manneras, for instance, by a crank 27. On one side of thewheel 26 two pins 28 28 are provided, said pins alternately engaging anddisengaging a cut-away portion 29 of theplunger 11, whereby the plungeris first raised against the action of. the spring. 15 and then releasedand driven downward by said spring when the pin 28 leaves the cut awayportion 29.

Pivoted at 30 to the bracket 7 is a feed-lever 31. The upper end of thefeed-lever 31 is slotted to receive an antifriction-roller 32, which isengaged alternately by lugs 33 33 on the wheel 26. By this means thelever is rocked to and fro. A spring 34, attached at 1 one end to thelever 31 and at the other end to the arm of the bracket 7, serves toretract the lever against the action of the lugs 33 33. order to limitthe throw or swing of the lever 31, an adjusting-screw 35 is mean ted ina part of the bracket 7 adjacent to the upper end of the lever 31.Loosely pivoted ,to the lower end of the lever 31 is an auxiliary lever36, upon which is adjustably mounted, by means of a suitablebolt-and-slot connection, a plate 37, the end of which is adapted toengage the teeth of one or two gin-saws and turn them at the propertime. I prefer to make the plate 37 wide enough to engage two or more ofthe saws 1, so as to avoid the danger of breaking the saw-teeth byengaging only one saw.

By making the bracket '7 adjustable on the beveled upper surface of theupright 6 I am enabled to regulate the pitch of the saw-teeth.

If the bracket be adjusted downwardly. the

saw-teeth will be given a greater hook or length and the cotton will betorn more readily.

Instead of the chisel shown in Fig. 5 1 may employ a circular gumminginstrument, such as shown in Fig. 7. When one portion of the edge of thecircular tool becomes worn, it may be revolved to bring a fresh portioninto operation.

It will be understood that changes in the particular details ofconstruction hereinbefore described may be made within the scope of thefollowing claims without departing from the spirit of my invention.

What I claim is- 1. In a sawgummer, the combination with a yoke-shapedframe, of a main spring-pressed plunger working through the oppositearms of the frame, a bracket hung from the lower arm of the frame,spring-snpported auxiliary plunger carried by the bracket in the path ofthe main plunger and provided with a gumming-blade, a shaft carried bythe yoke- .shaped frame transversely of the main plunger between thearms of the frame, a wheel mounted upon the shaft and provided with acrank-handle located in front of the plunger, a projection upon thefront side of the wheel, a cam upon the rear side of said wheel, a mainplunger havinga shoulder located in the path of the projection forcontact thereby to move the plunger against the tension of its spring,

and a lever fulcrui'ned intermediate of its ends upon the frame in rearof the pluiiger with one end in the path of the cam and its opposite endprovided with a dog for engagement with the teeth of a saw.

2. In a sav-giunmer, the combination with a frame having a pair ofalincd guide-(mew ings one of which is screw-thrcmled, a thread edbushing adjustable in the scrmv-threadvd opening,a plunger working inthe opening and in the bushing, a spring bearing against the bushing andthe plunger, the bushing being adjustable to vary the tension of thespring, means to move the plunger against the teusion of the spring andto trip tlnn'efroin to release the plunger, and a gun'uning-bladoactuated by the plunger.

In testimony that I claim the foregoing as my own I have hereto aflixcdmy signature in the presence-of two witnesses.

EZRA ALLEN l lliANlU.

vi ituessesz Tnoims F. EDGAR, CHAS. JonNsoN.

